
public class Main{
    public static void main(String args[]){
        String s1 = "sdut";
        String s2 = "I love " + s1;
        String s3 = "I love " + s1;
        System.out.print(s2 == s3);
        System.out.println(" "+s2.equals(s3));
        String str="ABCDEFG";
        char[] chars=str.toCharArray();
        System.out.println(new String(chars,1,3));
    }
}
